CVE-2020-35623
High
Description
An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1. Due to improper username validation, it allowed user impersonation with trivial manipulations of certain characters within a given username. An ordinary user may be able to login as a "bureaucrat user" who has a similar username, as demonstrated by usernames that differ only in (1) bidirectional override symbols or (2) blank space.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mediawiki
PublishedDec 21, 2020
First seenDec 21, 2020
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mediawiki mediawiki | v ≤ 1.35.1 | — |
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